乘飞机

I'd like to book a ticket for June 23rd.

I'd like a round-trip ticket to Tokyo.

I want an economy class ticket.

Is it direct?

What's the departure time?

Can I change my flight schedule?

When can I check in?

How much luggage can I carry on?

Which gate shall I go to?

Can you exchange seats with me?

Is this the baggage claim area for flight Y45?